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Unit4AmazingScienceTopic1Whenwasitinvented?SectionB()1.He___playcomputergamesunlesshefinishedhishomework.A.wasallowedtoB.wasnotallowedtoC.allowto

()2.Weallknowthatpaper___wood.A.ismadeofB.ismadeintoC.ismadefrom()3.Thiskindofmachine___in2006.A.isinv

entedB.ismadeC.wasinvented()4.A(An)___isusedfortakingphotos.A.CameraB.LiftC.MP3player()5.Weshouldspendmoret

ime___becauseit’stooimportant.A.tolearnEnglishB.learningEnglishC.inEnglishBCCABI.Choosetherightanswer.Youcandoit.II.Fillintheblankswiththerightpre

position.1.Thedeskismade_____wood.2.Theredwineismade_____grapes.3.Thisdeliciouscakewasmade___mymother.4.Glassesar

emade___glass.5.Ourgroupismadeup___fourstudents.6.Thatkindofmachineismade_____Japan.offromofofbyininvent/A

merica/in1946A:Wherewerecomputersinvented?B:TheywereinventedinAmerica.A:Whenwerecomputersinvented?B:Theywereinventedin194

6.Lookandtalkaboutthepicture.MP3player1998Korealistentomusicmobilephone1973AmericacommunicateeasilyPleasechooseonetotalkabout.digitalc

amera1975AmericatakephotosA:What’sthis?B:It’s…A:Whenwasitinvented?B:Itwasinventedin…A:Whoinventedit?B:…1bLi

stento1aandchoosethecorrectanswers.()1.WhereareMichaelandJane?A.Inthesciencemuseum.B.Attheschoollibrary.C.Inthezoo.D.Inthepark.()2.Whichobje

ctisnotmentionedintheconversation?A.Lightbulb.B.Airplane.C.Television.D.Radio.AC1aLook,listenandsay.Whenwasitinvented?Whoinventedit?Look

,alightbulb!In1897,ThomasEdison.In1895in1903in18791cRead1aandcompletethetable.InventionInventorYearlightbulbGuglielmoMarconi1903

radioairplaneThomasEdisonWilburandOrvilleWright187918951aLook,listenandsay.动画1a1dDiscusswithyourclassmatestheinventionslistedin1c.Letthemguesswh

ichinventionyouaredescribing.Youmaybeginlikethis:Itiswidelyusedbypeopleeverywhere.Itwasinventedin1879byThomasEdison.It’s

saidthat…A:Whatarethese?B:…A:Whenweretheyproducedfirst?B:…A:Whatweretheymadeof?B:…Doyouknow?2Fillintheblanksw

iththeproperformsofthegivenwords.Thefirstjeanswereproducedin1855.Atthattime,they___________(notcall)jeansandtheywerejus

thard-wearingpantsdesignedforworkers.Thepants_____________(make)ofthebrowncloth.Thiskindofcloth______usually___

_____(use)formakingtents.Nowadays,theirmaterialshavebeenchangedsothatitfeelsmorecomfortable.Andmanydiffe

rentjeansstyles_______also________(create).They___________(design)notonlyforworkersbutalsoforteenagersandwomen.Laterjeansarepopularallovertheworl

d.werenotcalledweremadewasusedarecreatedaredesignedA.KarlBenzC.AlexanderGrahamBellB.JohnBairdInventionInv

entorYeara.1926b.1876c.18853Listentothethreepassages.Matchthepictureswiththefollowinginformation.4aReadthefollowingwords.Listenandcheckthevowels.roc

ketcottonhospitalmodelsatellitecameralaptopplastic4bListenandreadthefollowingsentencesaloud,payingattentiontothestressandintonation.Thenuseth

ewordsin4atomakeupsimilarconversations.A:`Whenwasthe`digitalcamera`developed?B:Itwas`developedinthe`1970s.A:Isthe`digitalca

mera`developedin`Korea?B:`No.A:`Wherewasit`developed?B:Itwas`developedin`Japan.1.Thelightbulbisw______usedbypeopleeverywhere.2

.ThomasEdisoni_______thelightbulbin1879.3.It’ss______thatheinventedmorethantwothousandthingsduringhislife.4.Theairplanewas

inventedbyWilburandOrvilleWrightin1903.It’sd______fromtoday’s.idelynventedaidifferentWelearn:1.Somewords:bulb,airplane,hard-wearing,Kor

ea2.Somephrases:beusedby,morethan,bedifferentfrom3.Somesentences:It’ssaidthatheinventedmorethantwothousandthingsduringhislife.Wecan:1.Usethesi

mplepastpassivevoice:Doyouknowwhenitwasinvented?Itwasinventedin1879.2.Talkabouttheinventorsofsomegreatinvent

ions.•Read1a.•Memorizetheusefulexpressionsandkeysentencesthatwelearntoday.•FinishSectionBinyourworkbook.•PreviewSectionC.